Paint pulverizer



. E3, i932. l.. sPlRA PAINT PULVERIZER Filed July 22. 1929 2 Sheets-Sheet 1 lnven for.

L. SPIRA PAINT PULVERIZER Dec. 13, 1932.

2 Sheets-Sheet 2 Filed July 22, 1929 i 15 yit possible to Patented Dec. 13, 1932 UNITED STATES PATENT OFFCE PAINT rULvERIznn .Application led July 22,

The subject of the present invention is a paint pulverizer with pressure agent nozzle and suction nozzle arranged before the latter.

have the drawback that the nozzles either cannot be displaced at all or can onlybe displaced in one direction relatively to each other, soV that either only the form of the jet of paint, or only the quantity of paint contained in the jet can be altered, but not both at the same time. c 1 This defect has been avoided in the paint pulverizer according to the present invention by the fact that means are provided making displace the nozzles, which are at a right angle to each other, in the direction of the nozzle axes, owing to which displacement the form of the jet of paint and the quantity of paint-contained therein, can be modified. t

Moreover each of the nozzles can be regulated individually. p l

, On the drawings annexed different constructional examples of the subject ofthe invention are'shown in which:

Fig. 1 is a section of the first form of embodiment,

Fig. 2 a view in section of a second form of execution,

Fig. 3 a view of detail,

Fig. l a section of another modied form A of the invention, and

Fig. 5 a plan view of the same.

The paint pulverizer, shownin Figs. 1, 2

' 35 and 3, has a paint container 1 from which the paintL is fed through a conduit 2 to the paint nozzle 3. At the bottom end of this feed ccnduit 2, a filter a is fitted, being fixed by means of a bayonet joint 5. rlhe object of the filter l is to prevent the choking up by thickened paint of the nozzle 3, which has always taken place hitherto, and this does away with the troublesome and requently recurring cleaning of the nozzle.

On the paint container 1 a plate 6 is fixed from which a part 7 is punched out and bent away at a right angle, so that it can serve as the guide for a part of the pressure agent supply conduit. The plate 6 serves to carry a handle 8 which is fastened by means of a 1929, Serial No. 380,096, and in Switzerland July 23, 1928.

Devices of this vkind hitherto knownr position. In the paint nozzle.

lock nut 9, to the plate 6. rlhe handle 8embraces the lower part of a valve casing 10, with the valve body 11. Integral with the vvalve casing 10 there is the pressure agentp feed conduit 1|2, the lower part of which is provided with inside screw thread. In the part fitted with screw thread, there engages a further feed conduit part having an eX- ternal thread. With a part 13, there is connected a grooved piece 14 having a milled edge 16. In the` groove of the piece 14 and a corresponding groove of the handle 8 a ring 15 engages which serves to hold the parts 13, `111,

6. guide ring for the feed duct part 12.

The rod 19 which carries at one end the valve body 11, and which is guided in the valve case 10, is connected at its other end A ring 17 liXed bv a screw 18 acts as aA with a knob 2O ywhich is under the action of a,

spring upwards, on its seat. flange 22,

into a part 23 bent at a right angle. TheY horizontal arm of the part 28 can bebrought into engagement by turning the knob 20, with a pin 241, fitted on the valve case 10, to hold the valve 10 in open threaded sleeve 27 which is fixedly connected.

with the feed duct part 28, carrying the nozzle 29, is slidable. The sleeve 27 can bc locked tight by means of a locknut 30.

, By rotating the disc 16, the feed conduit part 12 and with it the valve case 10, and the nozzle 29 are shifted along the axis of the This vertical displacement effects an alteration of thequantity of paint discharged from the paint nozzle when operating the paint pulverizer. By turning the sleeve 27, the nozzle 29 is shifted axially, and

this horizontal displacement produces an alteration of form of the j et of paint emerging.

The relative displacement of the two nozzles, theorie to the other, is produced by the l 21, which causes the. knob 2O to move upper part of the valve case', Athe pressure agency conduit part 25 branches regulating of only one nozzle, i. e. the nozzle The rotation of the sleeve 27 can be carried out by the hand by which the handle 8 is held, so that the other hand remains free. The rotation of the disc 16, which elfects the vertical displacement of the nozzle 29 can be carried out with the left hand while the right hand grips the handle.

For regulating the nozzle 29 in vertical direction, the feed conduit part 12 could also be provided at its lower end with external thread entering into the internal thread of the piece 14, the latter .surrounding the under end of conduit 12 and thus replaces the guiding ring with the screws 18.

The arrangement described of the two means for shifting the nozzles renders the paint pulverizer very practical in actual handling, because the operation of the said means is very simple. The possibilit57 of fixing the valve in the open position entails the advantage that it is not necessary continuously to press down the knob, but the whole hand is left free for handling the pulverizer.

In the form of the invention shown in Fig. 2 the valve case 10 is arranged in a tubular sleeve 31 which is threaded in the upper end of the member 8.

The paint pulverizer according to Figs. 4 and 5 comprises again a paint container 1,

f wherefrom the paint is conducted to the paint nozzle 3 b y means of the conduit 2. To the cover of the container 1 is iixed a plate 6 which serves to support the handle 8 forming a part of the pressure agent feed conduit. The handle 8 is attached by means of a. part 9, acting like a counter pressure screw, to the plate 6, this part 9 serving at the same time as a valve body.

On the plate 6 is fixed by means of ascrew 34 an oscillating lever 35, the extremity whereof, directed towards the nozzle 3, is provided with a teeth segment 36. The latter engages a similar part 37 provided on the circumference of the body of the paint nozzle. The under end of the nozzle body has a thread 38 which engages into the interior thread of the paint feeding conduit 2, so that by oscillating the lever 35, the paint nozzle 3 is turned around its axis by means of the teethed segment 36 and the teeth 37; it therefore is moved to and fro in the direction of its axis and approaches or becomes distant from the nozzle 29.

Through an opening 39 of the lever 35 emerges a part 7 serving as a guide for the nozzle 29, the said part 7 acting at the same time like an abutment for the oscillating movement of the lever 35.` On the opposed extremity the plate shows an index pointer '40 which allows in cooperation with the scale 41 to control the movement of the lever 35.

The regulating of the nozzle 29 is operated in the above described manner, i. e. by means of the threaded parts 26, 27.

The rod 19 guided within the upper part 9 has a valve body 11 and a knob 20 which is pressed upwards by a spring 2l, so that the valve body 11 is continuously closed. The rod 19 is provided with a pin 42 which can be displaced within the slot 43 of the body 9. At the under end of the slot 43 is provided a shoulder 44, against which the pin 42 abuts when the knob 2O and the rod 19 together with the said pin is pressed down and turned around its axis. In this position the valve body remains lifted and the valve is open.

Atthe under end of the handle 8 there is provided on the conduit 45 a nut 46 serving for the straight connection with a flexible pipe etc. 47.

The described arrangement of the means for regulating both the nozzles and the means for actuating the valve have the advantage that all the three means can be operated by the fingers of that hand which grasps the handle 8. The other hand remains thus free and can operate the pumps which furnish for instance the pressure agent.

I claim :V

Apparatus of the class described, including a suction nozzle for the discharge of paint and the like, and a nozzle for the discharge of fluid under pressure, said nozzles being arranged substantially at right angles to each other and each with its discharge end spaced from the discharge end of the other, the second named nozzle being movable axially and being also movable laterally with respect to the paint discharge nozzle.

In testimony whereof I have hereunto set my hand this 8th day of July A. D. 1929.

LEOPOLD SPIRA. 

